fix(ingest): Remove env deprecation message (#10581)

metadata-ingestion/src/datahub/configuration/source_common.py

@@ -4,7 +4,6 @@
 from pydantic.fields import Field
 
 from datahub.configuration.common import ConfigModel
-from datahub.configuration.validate_field_deprecation import pydantic_field_deprecated
 from datahub.metadata.schema_classes import FabricTypeClass
 
 DEFAULT_ENV = FabricTypeClass.PROD
@@ -36,12 +35,6 @@ class EnvConfigMixin(ConfigModel):
         description="The environment that all assets produced by this connector belong to",
     )
 
-    _env_deprecation = pydantic_field_deprecated(
-        "env",
-        message="We recommend using platform_instance instead of env. "
-        "While specifying env does still work, we intend to deprecate it in the future.",
-    )
-
     @validator("env")
     def env_must_be_one_of(cls, v: str) -> str:
         if v.upper() not in ALL_ENV_TYPES: